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(printed) instructions; manual; explanatory leaflet (pamphlet, note); description
説明書を読んでから使った。
I used it after reading the instructions.
説明書なしでも組み立てられた。
I was able to assemble it without instructions.
この家電は説明書が分かりにくいと評判だ。
This appliance is known for having confusing instructions.